CN105008695B - Exhaust uptake - Google Patents
Exhaust uptake Download PDFInfo
- Publication number
- CN105008695B CN105008695B CN201380073956.8A CN201380073956A CN105008695B CN 105008695 B CN105008695 B CN 105008695B CN 201380073956 A CN201380073956 A CN 201380073956A CN 105008695 B CN105008695 B CN 105008695B
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- China
- Prior art keywords
- exhaust
- openend
- main body
- porous zone
- exhaust uptake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/24—Heat or noise insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/002—Wall structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2213/00—Chimneys or flues
- F23J2213/50—Top cover
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
- F23J2900/13003—Means for reducing the noise in smoke conducing ducts or systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chimneys And Flues (AREA)
- Exhaust Silencers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The exhaust uptake (40) of the present invention connects bore region (51) with openend including exhaust chimney main body (43).Exhaust chimney main body (43) is the passage of discharge waste gas.Openend porous zone (51) is the region that multiple holes (50) are opened up along the whole surrounding of the openend (44) of exhaust chimney main body (43).By opening up the simple construction in hole (50) in exhaust chimney main body (43), the sound that can suppress low frequency component discharges exhaust uptake (40) to outside.
Description
Technical field
The present invention relates to for example for discharging the exhaust uptake of the waste gas of gas turbine.
Background technology
In general gas turbine is made up of compressor, burner and turbine.The air come in from air duct, through compressor
Turn into the compressed air of HTHP after compression, in burner, compressed air supply fuel is burnt, obtains high temperature
The burning gases of high pressure are working fluid, by combustion gases drive turbine, drive connection in the generator of the turbine.
The discharge flue of the waste gas of this gas turbine, due to the sympathetic response of the internal acoustic field of gas turbine, it is possible to outwards
The sound of the low frequency components of portion release number Hz (hertz) below.For example, the sound of low frequency component, the frequency belonged to below people's audible sound
Rate, therefore, people can hardly direct feeling to such abnormal sound, still, this bass is to cause equipment all indirectly
Enclose the main reason for house window frame etc. loosens.
There is the technology of muffler to the possibility of outside release, exploitation to reduce this distinctive low frequency component sound,
Referenced patent document 1.
Prior art literature
Patent document
Patent document 1：Japanese Patent Laid-Open 11-159347 publications
The content of the invention
Technical problems to be solved
The muffler of the exhaust uptake of above-mentioned patent document 1, the sound of low frequency component can be reduced.But patent document 1
Described in exhaust uptake, for reduce audible sound below low frequency sound field sympathetic response vibrations, it is necessary to muffler is maximized, this
Need construction period and the expense of muffler.
The present invention solves above mentioned problem, and it is an object of the present invention to provide one kind suppresses the sound of low frequency component by simply constructing
Exhaust uptake of the sound to outside release.
Technical scheme
To reach above-mentioned purpose, exhaust uptake is characterised by, includes the exhaust chimney master of the passage as discharge waste gas
Body, and it is whole around along the exhaust chimney body openings end side, it is drilled with the openend porous zone in multiple holes.
According to said structure, the reflection of the resonance vibration of exhaust chimney body interior can be suppressed.Thus, it is possible to reduce because
The resonance vibration of exhaust uptake and the magnifying power amplified, suppress the sound of the low frequency component from openend radiation.As a result, exhaust
Flue can reduce vibration is caused to equipment periphery house window frame etc. possibility with making indirectly.
According to said structure, in exhaust uptake, along the openend of exhaust chimney main body it is whole around be only drilled with it is multiple
Hole, therefore the construction time is short, can reduce operating expenses.
It is preferably in the present invention, is provided with the positions different from the openend porous zone of the exhaust chimney main body
It is drilled with other porous zones in multiple holes.
According to said structure, other porous zones can suppress the reflection of the resonance vibration of high order component Audio mode.By
This, can suppress the reflection of the resonance vibration of the Audio mode of the high order component of exhaust chimney body interior.So as to reduce because of exhaust
The resonance vibration of flue and the magnifying power amplified, suppress the sound of the low frequency component from openend release.
It is preferably to set and be used for across the outer of space covering in the periphery side of the openend porous zone in the present invention
Cylinder portion.
According to said structure, air layer, the sound impedance increase of openend in space be present.As a result, reduce because of exhaust
The resonance vibration of flue and the magnifying power amplified, suppress the sound of the low frequency component from openend radiation.
In the present invention be preferably, in the exhaust chimney main body, the adjacent hole of the openend porous zone it
Between or the adjacent hole of other porous zones between possess ribs.
, can be with while exhaust uptake can suppress the reflection of the resonance vibration of exhaust chimney main body according to said structure
The intensity of exhaust chimney main body is kept to a certain extent.
Be preferably in the present invention, the exhaust chimney main body possess outside wall portions, inner wall part, the connection outside wall portions with it is described
The connecting elements of inner wall part, the thermal insulating material between the outside wall portions and the inner wall part, the hole are through the outer wall
Portion and the thermal insulating material and the inner wall part and formed.
According to said structure, the heat of waste gas is not easy to conduct to outer wall, can increase the service life.
In the present invention be preferably, the hole be by cylinder element through the outside wall portions and the thermal insulating material and it is described in
Wall portion and form.
According to said structure, hole is formed using cylinder element, while structure can be simplified, prevent waste gas intrusion outer wall with
Between inwall, its durability can be improved.
It is preferably in the present invention, the space being located between the openend porous zone and the outer cylindrical portion, under it
End and upper end are to outside opening.
According to said structure, the waste gas in space is emitted into through via from exhaust chimney main body, is entered with the lower end from space
Extraneous air mixing and be cooled.Afterwards, the waste gas after cooling rises from space, is emitted from upper end, can suppress outer
The high temperature of wall portion.
It is preferably in the present invention, in the outer cylindrical portion, the inner face relative with the hole is provided with thermal insulating material.
According to said structure, the waste gas in space is emitted into through via from exhaust chimney main body, after being collided with thermal insulating material
Rise, the high temperature of outside wall portions can be suppressed.
It is preferably in the present invention, rib is provided with the outside of the outer cylindrical portion.
According to said structure, by adjusting the shape and size of rib, the sound impedance of openend can be optimized.
In the present invention be preferably, the exhaust uptake be connection it is multiple formed specific lengths tubulars vesicular structure block and structure
Into.
According to said structure, for example, multiple loose structure blocks are manufactured in factory, and by the plurality of piece of transport to scene, and
Connect multiple loose structure blocks and manufacture exhaust uptake, manufacturing process can be simplified, reducingd the construction costs.
In addition, exhaust uptake is characterised by, possess：As the exhaust chimney main body of the passage of discharge waste gas and in institute
State the openend porous zone that multiple holes are drilled with the whole surrounding at least one portion in exhaust chimney body openings end side.
According to said structure, the reflection of the resonance vibration of exhaust chimney body interior can be suppressed.Therefore, exhaust uptake is reduced
The magnifying power amplified by resonance vibration, can suppress from openend radiation low frequency component sound.Its result is to be vented cigarette
Road, it can reduce indirectly to vibration caused by house window frame etc. around equipment.
It is preferably that the openend porous zone is located at the inner side of the bending direction of the exhaust chimney main body in the present invention
Openend side.
According to said structure, it is possible to reduce from the waste gas of openend porous zone discharge.
Beneficial effect
It can be provided according to the present invention and suppress low frequency component sound to the exhaust uptake of outside release by simply constructing.
Brief description of the drawings
Fig. 1 is the sketch for representing the gas turbine structure involved by embodiment 1.
Fig. 2 is the exhaust uptake pattern perspective view for representing embodiment 1.
Fig. 3 is to represent to cut on the section by Fig. 2 hole center, the local mode section of openend porous zone
Figure.
Fig. 4 is the explanation figure of the low frequency component sound pressure level radiated for illustrating the exhaust uptake of embodiment 1.
Fig. 5 is the pattern perspective view for the exhaust uptake for showing embodiment 2.
Fig. 6 is the explanation figure for the porous zone position for illustrating embodiment 2.
Fig. 7 is the pattern perspective view for the exhaust uptake for showing embodiment 3.
Fig. 8 is the partial section for representing Fig. 7 Section A-As.
Fig. 9 is the pattern perspective view for the exhaust uptake for showing embodiment 4.
Figure 10 is the sectional view of the openend of the exhaust uptake of embodiment 5.
Figure 11 is the sectional view of the openend of the exhaust uptake of embodiment 6.
Figure 12 is the sectional view of the openend of the exhaust uptake of embodiment 7.
Figure 13 is the sectional view of the openend of the exhaust uptake of embodiment 8.
Figure 14 is the sectional view of the openend of the exhaust uptake of embodiment 9.
Figure 15 is the pattern perspective view for the exhaust uptake for showing embodiment 10.
Figure 16 is the partial section for representing Figure 15 section B-Bs.
Embodiment
On being embodiment to implement the solution of the present invention, it is described in detail with reference to drawing.In addition, the embodiment
It is not only limited in the present invention, in the case where embodiment is multiple, also includes combining each embodiment constituted mode.Remember below
In the inscape stated, including industry technical staff easily imagine and substantially same form scheme.Further,
The inscape recorded below can be suitably combined.
(embodiment 1)
Fig. 1 is the structure diagram for the gas turbine for representing embodiment 1.Gas turbine is as shown in figure 1, including compressor 11
With burner 12 and turbine 13.Not shown generator in the gas turbine connection figure, can generate electricity.
Compressor 11, possess the aspirating air pipe 20 of suction air, the configuration inlet guide vane (IGV) in compressor casing 21
22, meanwhile, it is that the direction of principal axis of rotor 32 described later is alternately arranged multiple stator blades 23 and movable vane 24 in fore-and-aft direction, is set on the outside of it
There is aspirating chamber 25.Burner 12 provides fuel to the compressed air compressed in compressor 11, and igniting is incendivity.Turbine 13,
Fore-and-aft direction is that the direction of principal axis of rotor 32 described later is alternately arranged multiple stator blades 27 and movable vane 28 in turbine cylinder body 26.The turbine cylinder
The downstream side of body 26, exhaust air chamber 30 is configured across air exhauster room 29, exhaust air chamber 30 has the exhaust diffusion for being connected to turbine 13
Device 31.
In addition, through compressor 11, burner 12, turbine 13, exhaust air chamber 30 central part and rotor i.e. main shaft is installed
32.In rotor 32, rotatably supported by bearing 33 in the side end of compressor 11 1, on the other hand, exhaust air chamber 30 1
Side end is rotatably supported by bearing 34.In addition, the rotor 32, overlapping be fixed with is equipped with respectively at compressor 11
Multiple disk type rotors 35 of movable vane 24, it is overlapping to be fixed with the multiple disk type rotors 36 for being equipped with each movable vane 28 at turbine 13, give up
The drive shaft of not illustrated generator in the side end connection figure of air chamber 30 1.
In addition, the discharge chambe 21 of the compressor 11 in the gas turbine is supported by foot 37, the turbine cylinder body 26 of turbine 13
Supported by foot 38, exhaust air chamber 30 is supported by foot 39.
Therefore, the air sucked from the aspirating air pipe 20 of compressor 11, passes through inlet guide vane 22, multiple stator blades 23 and movable vane
24, become the compressed air of HTHP after being compressed.In burner 12, to fuel as defined in compressed air offer, and
Burnt.In addition, the HTHP burning gases generated in burner 12, by the He of multiple stator blades 27 for forming turbine 13
Movable vane 28, drive rotor 32, and drive connection not illustrated generator in the figure of the rotor 32.On the other hand, waste gas is
The heat energy of burning gases, by the exhaust diffuser 31 of exhaust air chamber 30, after being transformed to pressure, deceleration, it is admitted to exhaust described later
Flue.
Fig. 2 is the exhaust uptake pattern perspective view for representing embodiment 1.Fig. 3 is on the section by Fig. 2 hole center
The local pattern sectional view of the openend porous zone of cutting.Fig. 4 is the low frequency for the exhaust uptake radiation for illustrating embodiment 1
The explanation figure of the sound pressure level of component.As shown in Fig. 2 the exhaust uptake 40 involved by embodiment 1, including the He of discharge duct main body 41
Exhaust chimney main body 43.
Discharge duct main body 41, there is defined length, form the shape that metal plate is bent into regulation shape, its one end shape
Into the connector 30a for connecting above-mentioned exhaust air chamber 30；Other end intervention intercommunicating pore 42 connects exhaust chimney main body 43.Exhaust chimney master
Body 43, formed by the metal for being pressed into tubular.The waste gas of exhaust air chamber 30, by connector 30a, it is inhaled into exhaust uptake
40, discharge duct main body 41, intercommunicating pore 42, exhaust chimney main body 43 are sequentially flowed through, from the openend 44 of exhaust chimney main body 43
Discharged into air.
As described above, the pressure pulse or the sinuous flow of waste gas that occur in the burner 12 shown in Fig. 1, due in exhaust cigarette
The resonance vibration in road 40 and amplify, the sound of the low frequency component below audible sound scope is radiated in the openend 44 of exhaust chimney main body 43
Sound.For example, the sound of low frequency component, in tens of below Hz, for example, from 1Hz to 20Hz or so.The sound of the low frequency component, greatly
Part is the frequency component below people's audible sound, so people are less able to directly hear this abnormal sound, but this sound
Sound returns sometimes can turn into the main reason for causing the vibration such as house window frame around equipment indirectly or loosening.
As shown in Fig. 2 the exhaust uptake 40 involved by embodiment 1, along the openend 44 of its exhaust chimney main body 43
It is whole around, be drilled with the openend porous zone 51 in multiple holes 50.The construction of openend porous zone 51, simply it is vented on edge
Open up multiple holes 50 around the openend 44 of funnel body 43 is whole, therefore the construction time is short, operating expenses is cheap.
The sound of low frequency component, amplify due to the resonance vibration in exhaust uptake 40, the resonance vibration is reflected in out
Mouth end 44 occurs.The hole 50 of openend 44 is opened in, turns into sound equipment opposed body, the sound equipment impedance at enlarged opening end 44.Its result
For the magnifying power for making the sinuous flow of the pressure pulse or waste gas occurred in burner 12 amplify in the resonance vibration of exhaust uptake 40
Reduce, so as to suppress the sound of the low frequency component radiated from openend 44.
As shown in figure 3, the hole 50 of openend porous zone 51, for the low frequency component sound that will be discharged from openend 44
Sound pressure level (SPL：Sound Pressure Level) [unit：DB] it is reduced to below desired value, according to exhaust chimney main body 43
Thickness t, the diameter D in hole 50, the mutual interval P in hole 50, openend porous zone 51 hole 50 quantity and fit again after calculating
Locality is drilled.
For example, as shown in figure 4, in the case where transverse axis is frequency, the longitudinal axis is sound pressure level (SPL), it is porous on openend
Region 51 have hole 50 in the case of sound pressure level curve, according to the thickness t of exhaust chimney main body 43, the diameter D in hole 50, hole 50 that
This interval P, the quantity in hole 50 of openend porous zone 51 are calculated.Also, the frequency below the audible sound shown in Fig. 4
In terms of component fg, it is set as the exhaust chimney main body 43 of the exhaust uptake 40 involved by embodiment 1, such as Fig. 3 institutes
The diameter D in the hole 50 shown, the mutual interval P in hole 50, openend porous zone 51 hole 50 quantity so that relative to openend
Sound pressure level curve L2's when there is a hole 50 sound pressure level curve L1 when porous zone 51 is without hole 50, openend porous zone 51
SPL turns into desired value.
As described above, the exhaust uptake 40 during embodiment 1 is involved, including exhaust chimney main body 43 and openend it is more
Bore region 51.Exhaust chimney main body 43 is to discharge the passage of waste gas.Openend porous zone 51 is, along exhaust chimney main body 43
Openend 44 it is whole around open up the region in multiple holes 50.Being total in exhaust chimney main body 43 can be suppressed according to the structure
The reflection of ring vibration.Therefore, the magnifying power amplified by the resonance vibration of exhaust uptake 40 reduces, it is suppressed that is put from openend 44
The sound for the low frequency component penetrated.As a result, exhaust uptake 40 can reduce indirectly caused by around equipment house window frame etc. vibration
Loosen.In addition, exhaust uptake 40 is by opening up the simple construction in hole 50 to exhaust chimney main body 43, you can suppresses low-frequency sound
Release to outside.
(embodiment 2)
Fig. 5 is the pattern perspective view for the exhaust uptake for showing embodiment 2.Fig. 6 is the porous zone for illustrating embodiment 2
The explanation figure of position.In the following description, same symbol is used with above-mentioned embodiment identical inscape, omits weight
Multiple explanation.
In the exhaust uptake 40 of embodiment 2, exhaust chimney main body 43 possesses openend porous zone 51, the 2nd porous region
Domain 52, the 3rd porous zone 53.2nd porous zone 52 and the 3rd porous zone 53, Ye Shiyan identical with openend porous zone 51
Multiple holes 50 are opened up around exhaust chimney main body 43.Also, between openend porous zone 51, the 3rd porous zone 53, exist
The region in hole 50 is not opened up.In addition, between the 2nd porous zone 52, the 3rd porous zone 53, the area for not opening up hole 50 be present
Domain.Thus, there is the region for not opening up hole 50 in exhaust uptake 40, it can be ensured that the intensity of exhaust chimney main body 43.
The position of the 2nd porous zone 52 and the 3rd porous zone 53 is set in exhaust chimney main body 43 is, sympathetic response low frequency point
Measure the location of different each section of Audio mode of sound.As shown in fig. 6, the sound length of exhaust uptake 40 is set to L.Sound
Ringing length L is, from interface 30a repeatedly to the length of openend 44.Sound length L is the length of resonating spaces, to be fitted according to equipment
When setting.In addition, the resonance frequency f of exhaust uptake 40 can be represented by below equation (1).In addition, n=1 is 1 time point
Amount, n=2 are 2 component of degree n ns, n=3 is 3 component of degree n ns.
(mathematical expression 1)
For example, in above formula (1), c is the speed of sound wave, for example, 340m/s.C is resonance frequency f and wavelength X
Product, it can be represented by following formula (2).
(mathematical expression 2)
C=f λ (2)
The resonance frequency f of above formula (1) is substituted into above-mentioned formula (2), can be obtained according to following formula (3)
Wavelength X.
(mathematical expression 3)
It is porous in the position for turning into the section for the being scheduled on ripple setting the 2nd for meeting the wavelength X of formula (3) in exhaust uptake 40
The porous zone 53 of region 52 and the 3rd.As shown in fig. 6, the position as the section of the wavelength X of 1 component of degree n n is to turn into and openend 44
The section N11 of equivalent site.Position as the section of the wavelength X of 2 component of degree n ns is, as the section N21 with the equivalent site of openend 44
And section N22.Position as the wavelength X section of 3 component of degree n ns is section N31, section N32, section N33.
As described above, the exhaust uptake 40 involved by embodiment 2 includes, and exhaust chimney main body 43, openend are more
Bore region 51.Also, exhaust uptake 40, have in the position different from openend porous zone 51, be drilled with multiple holes 50 its
His porous zone is the 2nd porous zone 52 and the 3rd porous zone 53.By the structure, openend porous zone 51, suppress exhaust
The reflection of the Audio mode of 1 component of degree n n caused by resonance vibration in funnel body 43.
In addition, the 2nd porous zone 52 suppresses the sound equipment mould of 2 component of degree n ns caused by resonance vibration in exhaust chimney main body 43
The reflection of formula.In addition, the 3rd porous zone 53 suppresses the sound equipment of 3 component of degree n ns caused by resonance vibration in exhaust chimney main body 43
The reflection of pattern.2nd porous zone 52 and the 3rd porous zone 53, suppress the Audio mode of high order component resonance vibration it is anti-
Penetrate, therefore, compared with the exhaust uptake 40 of embodiment 1, reduce the putting for amplifying because of the resonance vibration of exhaust uptake 40
Big rate, suppress the sound of low frequency component radiated from openend 44.Its result is that exhaust uptake 40 is set caused by reducing indirectly
The vibration or loosening of standby surrounding house window frame etc..In addition, exhaust uptake 40, in the 2nd porous zone 52 of exhaust chimney main body 43
And the 3rd porous zone 53 open up hole 50, so as to simply be constructed.
In the exhaust uptake 40 of embodiment 2, exhaust chimney main body 43 has the 2nd porous zone 52 and the 3rd porous zone
53, but can only the 2nd porous zone 52 of configuration, or only configure the 3rd porous zone 53.In addition, the exhaust uptake of embodiment 2
40, in above-mentioned formula (1) to formula (3), the situation that n is 1~3 is listed, n also may be used for more than 4.
(embodiment 3)
Fig. 7 is the pattern perspective view for the exhaust uptake for representing embodiment 3.Fig. 8 is that the part for showing Fig. 7 Section A-As is cut
Face figure.In the following description, inscape identical with above-mentioned embodiment assigns same symbol, omits the portion of repeat specification
Point.
In the exhaust uptake 40 of embodiment 3, openend porous zone 51 that exhaust chimney main body 43 has, in openend
The periphery side of porous zone 51 sets the outer cylindrical portion 54 for being used for covering across space 55.As shown in figure 8, openend porous zone
Circular air layer is formed in space 55 between 51 and outer cylindrical portion 54.
The sound of low frequency component, amplify because of the resonance vibration of exhaust uptake 40, the resonance vibration is reflected in openend
44 occur.The hole 50 that openend 44 opens up, turn into sound opposed body, increase the sound impedance of openend 44.In addition, this embodiment party
The space 55 of formula, the activity of sound particle is restrained by outer cylindrical portion 54, therefore increase the sound impedance of openend 44.As a result,
The magnifying power that the pressure pulse or the sinuous flow of waste gas occurred in reduction burner 12 amplifies by the resonance vibration of exhaust uptake 40,
Suppress the sound of low frequency number component radiated from openend 44.
(embodiment 4)
Fig. 9 represents the pattern perspective view of the exhaust uptake of embodiment 4.In the following description, to above-mentioned embodiment
Identical inscape assigns same symbol, and the repetitive description thereof will be omitted.
As shown in figure 9, in the exhaust uptake 40 of embodiment 4, in openend porous zone 51, in adjacent holes 50 and hole 50
Between the surface of exhaust chimney main body 43 be provided with ribs 56.The intensity of exhaust chimney main body 43 have with the increase in hole 50 and
In downward trend.Ribs 56, even if there is the presence in hole 50, can also keep exhaust chimney main body 43 more than to a certain degree
Intensity.
The exhaust uptake 40 of embodiment 4, in the longitudinally disposed ribs 56 of exhaust chimney main body 43, exhaust chimney main body
The 43 circumferential interval according to regulation, multiple ribs 56 are welded on to the surface of exhaust chimney main body 43.In embodiment 2
Kind, ribs 56 also can be equally set on the 2nd porous zone 52 described above or the 3rd porous zone 53.
As described above, the exhaust uptake main body 43 in the exhaust uptake 40 of embodiment 4, in the phase of openend porous zone 51
Ribs 56 is set between adjacent hole 50.In addition, the exhaust chimney main body 43 in the exhaust uptake 40 of embodiment 4, above-mentioned
Other porous zones are that may also set up ribs 56 between the adjacent hole 50 of the 2nd porous zone 52, also can be porous at other
Region be the 3rd porous zone 53 adjacent hole 50 between set ribs 56.According to the structure, exhaust uptake 40 can suppress to arrange
The reflection of resonance vibration in Gas chimney main body 43, at the same time it can also in exhaust chimney main body 43 maintained above to a certain degree
Intensity.
(embodiment 5)
Figure 10 is the sectional view of the openend of the exhaust uptake of embodiment 5.In the following description, to above-mentioned embodiment party
Formula identical inscape assigns same symbol, and the repetitive description thereof will be omitted.
As shown in Figure 10, in the exhaust uptake 40 of embodiment 5, exhaust chimney main body 43 is by, cylindrical shape
Outside wall portions 61, the inner wall part 62 being made up of multiple warming plates, the multiple connecting elements 63 for connecting outside wall portions 61 and inner wall part 62,
Intervene what the thermal insulating material 64 between outside wall portions 61 and inner wall part 62 was formed.
The warming plate of inner wall part 62 is formed, it is formed the curved shape corresponding with outside wall portions 61 with defined size, is led to
Cross connection overlapping with peripheral part and form drum.The one end of connecting elements 63 is solid by welding with the inner face of outside wall portions 61
Fixed, other ends penetrate the overlapping part of multiple warming plates, are tightened with nut 63a.Therefore, connected and formed by multiple warming plates
Inner wall part 62, outside wall portions 61 are connected with inner wall part 62.
The side of openend 44 of exhaust chimney main body 43, provided with openend porous zone 51.In the openend porous zone
51, the through hole 65 formed with insertion outside wall portions 61, thermal insulating material 64 and inner wall part 62.In cylinder element 66, cylindrical portion 66a's
Base end part is formed with flange part 66b, out of the insertion of the inner side of exhaust chimney main body 43 through hole 65.In addition, cylinder element
In 66, flange part 66b be fixed by welding in inner wall part 62, its leading section portion is freely design, absorbable and exhaust chimney master
The difference of caused thermal expansion between body 43.Therefore, played in openend porous zone 51, the inside of cylinder element 66 as hole
50 function.In addition, the front end of cylinder element 66 can be by being welded and fixed with outside wall portions 61.
As described above, in the exhaust uptake 40 of embodiment 5, exhaust chimney main body 43 is by connection outside wall portions 61 and inner wall part
62 connecting elements 63, and the thermal insulating material 64 being situated between outside wall portions and inner wall part are formed, through outside wall portions 61 and thermal insulating material 64
And inner wall part 62 and form hole 50.Pass through the construction, exhaust uptake 40, because the heat energy for having thermal insulating material 64 and waste gas is not easy outwards
Wall portion 61 is conducted, and prevents the aging of outside wall portions 61, can extend the life-span of exhaust chimney main body 43.
In addition, the exhaust uptake 40 of embodiment 5, inner wall part 62, thermal insulating material 64 and outside wall portions are penetrated by cylinder element 66
61 and form hole 50.According to the construction, in exhaust uptake 40, hole 50 can be readily formed using cylinder element 66, so
The simplification of construction can be realized.Invaded in addition, waste gas can be suppressed by cylinder element 66 between inner wall part 62 and outside wall portions 61
Space.Here, the flange part 66b of cylinder element 66 be welded and fixed with inner wall part 62 and form waste gas sealing, can be positively
Prevent the intrusion of waste gas internally.Its result is that can improve durability.
(embodiment 6)
Figure 11 is the sectional view of the openend of the exhaust uptake of embodiment 6.In the following description, to above-mentioned embodiment party
Formula identical inscape assigns same symbol, and the repetitive description thereof will be omitted.
As shown in figure 11, in the exhaust uptake 40 of embodiment 6, the periphery side of openend porous zone 51 across
Space 71 sets the outer cylindrical portion 72 for being used for covering.The space 71 is located at the outer of the openend porous zone 51 of exhaust chimney main body 43
Between side and the inner side of outer cylindrical portion 72, thereunder and top forms the circular air layer of opening.
The bore of outer cylindrical portion 72, it is designed to be more than the exhaust chimney main body 43 i.e. bore of openend porous zone 51, leads to
Multiple supporting members 73 are crossed to be supported by exhaust chimney main body 43.The one end of the supporting member 73 is opened with exhaust chimney main body 43
The outside of mouth end porous zone 51 is welded and fixed, and the joggling part 73a of other ends and the inner faces contact of outer cylindrical portion 72, uses spiral shell
Nail 74 and nut 75 are riveted.
In the high-temp waste gas that the openend porous zone 51 of exhaust chimney main body 43 rises, a part therein passes through each hole
50 rows rise to space 71, and in the space 71.On the other hand, in space 71, enter extraneous air from lower end, mixed with waste gas
Close.Then, the waste gas cooled down by extraneous gas, discharged from the upper end in space 71.
As described above, the exhaust uptake 40 of embodiment 6, in the outer of the openend porous zone 51 of exhaust chimney main body 43
All sides set outer cylindrical portion 72 across space 71, and the lower end and upper end in the space 71 are to outside opening.According to the construction, pass through
The row of each hole 50 of openend porous zone 51 mixes to the waste gas in space 71 with the extraneous air of the lower end entrance in the space 71
It is cooled.Thereafter, the waste gas after being cooled, rises in space 71, is discharged from upper end, can so suppress the high temperature of outside wall portions 61
Change.In addition, outer cylindrical portion 72 covers the i.e. each hole 50 in openend porous zone 51 from outside, presentation quality can be so improved.
(embodiment 7)
Figure 12 is the sectional view of the openend of the exhaust uptake of embodiment 7.In the following description, to above-mentioned embodiment party
Formula identical inscape assigns same symbol, and the repetitive description thereof will be omitted.
As shown in figure 12, the exhaust uptake 40 in embodiment 7, the periphery side of openend porous zone 51 across
Space 71 sets the outer cylindrical portion 72 for being used for covering.The outer cylindrical portion 72, with hole 50 it is relative to inner face be provided with thermal insulating material 76.This
Outside, although not shown in figure, thermal insulating material preferably is set in the support members of support outer cylindrical portion 72.
In the high-temp waste gas that the openend porous zone 51 of exhaust chimney main body 43 rises, one part passes through each row of hole 50
To space 71, rise in the space 71.Now, the waste gas in space 71 is entered by each hole 50 from openend porous zone 51, with
Thermal insulating material 76 is collided and risen.On the other hand, in space 71, enter extraneous air from lower end, rising is mixed with waste gas.With
Afterwards, the waste gas cooled down by extraneous gas, discharged from the upper end in space 71.
As described above, the exhaust uptake 40 in embodiment 7, in the openend porous zone 51 of exhaust chimney main body 43
Outer circumferential side sets outer cylindrical portion 72 across space 71, with hole 50 it is relative to inner face be provided with thermal insulating material 76.According to the construction, pass through
The row of each hole 50 of openend porous zone 51 after being collided with thermal insulating material 76, rises, so to the waste gas in space 71 in the space 71
The high temperature of outside wall portions 61 can be suppressed.
(embodiment 8)
Figure 13 is the sectional view of the openend of the exhaust uptake in embodiment 8.In the following description, to above-mentioned implementation
Mode identical inscape assigns same symbol, and the repetitive description thereof will be omitted.
As shown in figure 13, the exhaust uptake 40 in embodiment 8, openend porous zone 51 outer circumferential side across space
71 set the outer cylindrical portion 72 for being used for covering.Also, the outside of the outer cylindrical portion 72, rib 77 is set.It is and outer in addition, the rib 77
The outside in cylinder portion 72 is orthogonal and fixes, and is circumferentially configured with the interval of equalization multiple.In addition, rib 77 in the vertical direction by
It is divided into multiple, can also sets integral.In addition, rib 77 is fixed along the vertical direction in the outside of outer cylindrical portion 72, but
Can circumferentially fix also, can also above-below direction with it is equally spaced configuration it is multiple.
As described above, the exhaust uptake 40 in embodiment 8, in the openend porous zone 51 of exhaust chimney main body 43
Outer circumferential side sets outer cylindrical portion 72 across space 71, and rib 77 is set in the outside of outer cylindrical portion 72.According to the construction, rib 77 is designed
Size and shape have nothing in common with each other, can so allow the sound being optimal of impedance of openend 44.
(embodiment 9)
Figure 14 is the sectional view of the openend of the exhaust uptake in embodiment 9.In the following description, to above-mentioned implementation
Mode identical inscape assigns same symbol, and the repetitive description thereof will be omitted.
As shown in figure 14, the exhaust uptake 40 in embodiment 9 is, by the tubular vesicular structure block of designated length
What 40A, 40B, 40C more individuals connected and composed.Multiple each vesicular structure block 40A, 40B, 40C, outside cylindrical
Wall portion 61, the inner wall part 62 being made up of multiple warming plates, multiple connecting elements 63 that outside wall portions 61 are connected with inner wall part 62,
Thermal insulating material 64 between outside wall portions and inner wall part, in the upper end of outside wall portions 61 and inner wall part 62, bottom it is used for preventing from protecting
What the top component 67 that warm material 64 comes off was formed.In addition, each vesicular structure block 40A, 40B, 40C, with each top component 67
It is in contact, inner peripheral surface and outer peripheral face are attached by welding.
In addition, each vesicular structure block 40A, 40B, 40C, set covering outer respectively in its periphery side across space 71
Cylinder portion 81,82,83.In addition, end portion setting heavy caliber portion 81a, 82a of the outer cylindrical portion 81,82, formation and outer cylindrical portion 82,
The construction that 83 upper end coincides.In addition, the outer cylindrical portion 81,82,83, is supported by supporting member 73.
As described above, the exhaust uptake 40 in embodiment 9, be by designated length the multiple vesicular structure block 40A of tubular,
What 40B, 40C were connected and composed.According to the construction, for example, after factory manufactures multiple vesicular structure block 40A, 40B, 40C,
The plurality of vesicular structure block 40A, 40B, 40C are carried to scene, at the scene by multiple vesicular structure block 40A,
40B, 40C are connected, and manufacture exhaust uptake, can so make manufacturing process easy, while reduce capital construction cost.
Exhaust uptake 40 is formed by multiple vesicular structure block 40A, 40B, 40C, for example, design outer cylindrical portion 81,82,83
The position of mutual opening portion and size are different, can so optimize the sound impedance of openend 44.
(embodiment 10)
Figure 15 is the pattern perspective view for representing the exhaust uptake in embodiment 10；Figure 16 is the section B-B for representing Figure 15
Partial section.In the following description, same symbol is assigned to above-mentioned embodiment identical inscape, omits and repeats
Explanation.
As shown in Figure 15 and Figure 16, in the exhaust uptake 40 in embodiment 10, there is opening in exhaust chimney main body 43
The whole at least part of openend porous zone 51 for being drilled with multiple holes 50 of surrounding at end 44.Specifically, openend is porous
Region 51, it is located at the openend 44 of the inner side of the bending direction of exhaust chimney main body 43.
In exhaust uptake 40, discharge duct main body 41 almost with right-angle bending connection exhaust chimney main body 43, is opened at it
The part at mouth end 44 is provided with openend porous zone 51.Waste gas is almost flowed into right-angle bending from discharge duct main body 41 and arranged
Gas chimney main body 43, therefore hole 50 is formed in the openend side of the inner side of the bending direction of exhaust chimney main body 43, in exhaust cigarette
The openend side in the outside of the bending direction of chimney main body 43 does not form hole 50.It is for example, more in the openend of exhaust chimney main body 43
The openend side θ 1 of the inner side of bore region 51 angular regions form hole 50, the openend side θ 2 in the outside
Angular regions do not form hole 50.
As described above, in the exhaust uptake 40 of embodiment 10, exhaust chimney main body 43 is around the entirety of openend 44
It is at least part of, for example, setting openend porous in the side of openend 44 of the inner side of the bending direction of exhaust chimney main body 43
Region 51.According to the construction, it is possible to reduce the waste gas discharged from openend porous zone 51.
In addition, the embodiment 10, openend porous zone is set in the inner side of the bending direction of exhaust chimney main body 43
51, the position is not what is limited, can carry out appropriate setting according to the shape of exhaust uptake 40.
In addition, the exhaust uptake involved by above-mentioned each embodiment is illustrated suitable for gas turbine, but not
Gas turbine is only limitted to, as long as the facility of discharge waste gas, no matter which kind of equipment is applicable.
Description of reference numerals
11 compressors
12 burners
13 turbines
20 aspirating air pipes
21 compressor casings
30 exhaust air chambers
30 a connectors
31 exhaust diffusers
40 exhaust uptakes
41 discharge duct main bodys
42 intercommunicating pores
43 exhaust chimney main bodys
44 openends
50 holes
51 openend intercommunicating pores
52 the 2nd intercommunicating pores
53 the 3rd intercommunicating pores
54 outer cylindrical portions
55 spaces
56 ribs
61 outside wall portions
62 inner wall parts
63 connecting elements
64 thermal insulating materials
66 cylinder elements
71 spaces
72 outer cylindrical portions
76 thermal insulating materials
77 ribs
81st, 82,83 outer cylindrical portion
N11, N21, N22, N31, N32, N33 are saved
Claims (10)
- A kind of 1. exhaust uptake, it is characterised in that including：It is and entirely all along the exhaust chimney body openings end side as the exhaust chimney main body of the passage of discharge waste gas Enclose, be drilled with the openend porous zone in multiple holes,The exhaust chimney main body possesses the connecting elements of outside wall portions, inner wall part, the connection outside wall portions and the inner wall part, is situated between Thermal insulating material between the outside wall portions and the inner wall part, the hole are to run through the outside wall portions and the guarantor by cylinder element Warm material and the inner wall part and formed,The cylinder element is had flange part and is welded and fixed using the flange part.
- 2. exhaust uptake according to claim 1, it is characterised in that in the exhaust chimney main body and the openend The different position in porous zone is provided with other porous zones for being drilled with multiple holes.
- 3. exhaust uptake according to claim 1 or 2, it is characterised in that the outer Monday in the openend porous zone Side sets the outer cylindrical portion being used for across space covering.
- 4. exhaust uptake according to claim 2, it is characterised in that in the exhaust chimney main body, in the opening Possesses ribs between the adjacent hole of end porous zone or between the adjacent hole of other porous zones.
- 5. exhaust uptake according to claim 3, it is characterised in that be located at the openend porous zone and the outer barrel The space between portion, its lower end and upper end are to outside opening.
- 6. exhaust uptake according to claim 3, it is characterised in that in the outer cylindrical portion, it is relative with the hole in Face is provided with thermal insulating material.
- 7. the exhaust uptake according to claim 5 or 6, it is characterised in that be provided with rib in the outside of the outer cylindrical portion.
- 8. exhaust uptake according to claim 1 or 2, it is characterised in that the exhaust uptake, which is that connection is multiple, forms regulation The vesicular structure block of the tubular of length and form.
- 9. a kind of exhaust uptake, it is characterised in that possess：As the exhaust chimney main body of the passage of discharge waste gas, and,The openend for being drilled with multiple holes at least one portion around the exhaust chimney body openings end side is whole is porous Region,The exhaust chimney main body possesses the connecting elements of outside wall portions, inner wall part, the connection outside wall portions and the inner wall part, is situated between Thermal insulating material between the outside wall portions and the inner wall part, the hole are to run through the outside wall portions and the guarantor by cylinder element Warm material and the inner wall part and formed,The cylinder element is had flange part and is welded and fixed using the flange part.
- 10. exhaust uptake according to claim 9, it is characterised in that the openend porous zone is located at the exhaust The openend side of the inner side of the bending direction of funnel body.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012057809 | 2012-03-14 | ||
| JP2013-049576 | 2013-03-12 | ||
| JP2013049576A JP6071664B2 (en) | 2012-03-14 | 2013-03-12 | Exhaust flue |
| PCT/JP2013/074262 WO2014141509A1 (en) | 2012-03-14 | 2013-09-09 | Exhaust flue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105008695A CN105008695A (en) | 2015-10-28 |
| CN105008695B true CN105008695B (en) | 2018-02-16 |
Family
ID=49589725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380073956.8A Expired - Fee Related CN105008695B (en) | 2012-03-14 | 2013-09-09 | Exhaust uptake |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9970358B2 (en) |
| JP (1) | JP6071664B2 (en) |
| KR (1) | KR101707363B1 (en) |
| CN (1) | CN105008695B (en) |
| DE (1) | DE112013006822T5 (en) |
| WO (1) | WO2014141509A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5578384B1 (en) * | 2013-11-15 | 2014-08-27 | 株式会社東洋新薬 | Flavor improving method and flavor improving composition containing N-acetylglucosamine |
| JP6302238B2 (en) * | 2013-12-20 | 2018-03-28 | 三菱重工業株式会社 | Exhaust device and gas turbine |
| JP6618780B2 (en) * | 2015-11-13 | 2019-12-11 | 三菱日立パワーシステムズ株式会社 | Chimney noise reduction device |
| JP6649119B2 (en) * | 2016-02-26 | 2020-02-19 | 三菱重工業株式会社 | Exhaust gas silencer, gas turbine equipment, and nuclear power plant |
| CN106121189A (en) * | 2016-06-24 | 2016-11-16 | 陈桂霞 | A kind of exhaust uptake |
| WO2020051623A1 (en) * | 2018-09-13 | 2020-03-19 | The University Of Adelaide | An exhaust gas assembly |
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- 2013-09-09 KR KR1020157023213A patent/KR101707363B1/en active IP Right Grant
- 2013-09-09 US US14/768,868 patent/US9970358B2/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| DE112013006822T5 (en) | 2015-12-10 |
| US9970358B2 (en) | 2018-05-15 |
| KR20150111997A (en) | 2015-10-06 |
| KR101707363B1 (en) | 2017-02-15 |
| CN105008695A (en) | 2015-10-28 |
| WO2014141509A1 (en) | 2014-09-18 |
| US20150377139A1 (en) | 2015-12-31 |
| JP2013217369A (en) | 2013-10-24 |
| JP6071664B2 (en) | 2017-02-01 |
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